Well, I've had few annoying bugs with flickering lock screen widgets so I went for manual update using flashtool, I've noticed few other important improvements speaker is now better and latest firmware has newer ES3 v45 driver revision which I was waiting for. You could always manual update your device but make sure you using right .ftf for your model. You have instructions with the link Uliwooly provided, as for ftf you could look on xda
